Elegy 102 stereo

First class stereo radio Elegy 102 stereo produced since 1981 by the Murom RIP.

Radiola is made entirely on semiconductor devices, which increases compactness and reduces power consumption.

Radiola Elegia 102 stereo consists of 4 separate blocks: a radio receiver, a player and 2 loudspeakers (AC).
Blocks can be arranged in the most convenient combination.
The radio receiver operates in the ranges: DV, SV, HF and VHF.
In the VHF range, it is possible to receive stereo transmissions.
The receiver is equipped with a fixed tuning for 3 radio stations in the VHF band.
The 3 speed EPU is capable of playing mono and stereo records.

Main technical characteristics

Sensitivity, μV in the ranges of DV, SV, KV - 150, VHF - 5.
Rated output power in each channel 2x6 W. Maximum 2x20 W.
Power consumption when receiving 45 W, when playing a recording 55 W.
The band of sound frequencies in the AM bands is 63 ... 4000 Hz, FM - 63 ... 12500 Hz.
The dimensions of the receiver are 624x318x171 mm, the player is 316x409x170 mm.
Total weight - 30 kg.
Price - 310 rubles.

Tale about Ivan the DIYer, empetrish gusli-samogudy and loud-speaking decks

Once upon a time Ivan the DIYer lived in the glorious city of Kostroma.
And somehow the brother-in-law, the brother of his wife, came to Ivan. He came, and he says: Oh, you are a goy, my relative Ivan, help my drop dead misfortune! I have empetrish gusli-samogudy, but they are only audible to me alone. It’s impossible for me, young man, to call the red girls to the diskach, you can’t stretch your frisky legs!
And you make me, Ivan the do-it-yourselfer, decks of loud-speaking, actively singing!

Ivanushka became thoughtful and twirled. Ivan had columns from Elegy 102. And Ivan had a hot soldering iron, clean hands and a cold calculation. Nothing to do.
Ivan the self-made said: I will remake for you, brother-in-law, wife's brother, my Elegy into actively singing loud-speaking decks. Soon the fairy tale tells, but the deed is not done soon!

Ivan took the Basurman TDA2030A chip, and hung it in our way, but in a unipolar way.
Yes, I changed a couple of booming speakers. He chained empetrish harp-samogudy to the entrance of the decks.
So it became with the brother-in-law - what is not an evening, then a disco.
And Ivanushka the do-it-yourselfer says: hey, brother-in-law, brother-in-law, you are my friend, go more cheerfully! And when you burn the Basurman microcircuit, come again. After all, I have up to a dozen of them!
And I was there, poisoned the fee.
Rosin flowed, but did not get into the nose ...

(C) 2008 The fairy tale was written by Igor Kotov

Idea

One fine day, my wife's brother (a 14-year-old boy) came to me and said, I want speakers to play from my MP3 player. I scratched my head and said - well, it will be.

They began to think about what and how. The gaze fell on soviet speakers"Elegy 102". They look nice, they sound good, but for MP3 you don't need to.

An autopsy showed that the insides of the speakers are simple: HF - 3GD-3, LF - 6GD-6, HF is put through a capacitor with a capacity of 1 microfarad. They decided to replace the bass with 25GDN-3-4, and leave everything else alone.

The amplifier was chosen simple circuit on TDA2030A

Key Features of TDA2030A

Scheme of unipolar inclusion of TDA2030A in the amplifier

Applied Amplifier Parts

Why these MCs? Because I somehow bought 15 pieces and now I'm slowly collecting them. Since everything should play from the mp3 player, it was decided not to bother with the volume control, although it was possible to simply put a variable resistor.

View of the collected board

Redesigned column from the inside

Finished blocks, as you can see, are placed on the sides of the case.

The amplifier is powered by a transformer with one secondary winding for 22V, this is quite enough.

Rear panel

The rear panel turned out to be ascetic - only a connector for a power cord, a switch and a socket for connecting a second speaker.

Personal impressions

What impressions from work: they play excellently, there is no background! Which is surprising, because I did not shield the amplifier blocks. Once, somewhere I read that the unipolar inclusion of this MS kills the sound - do not believe it until you do it yourself and you will understand.

A little tar!

But there is always a fly in the ointment in a barrel of honey - the walls of the cases are too thin (10-12 mm), and at high volume they begin to ring.

But in general - one evening of work and active monitors are ready.

Very, very trash for a long time, back in the days of the USSR, we had a stereo system. Player + radio "Elegy - 102 stereo". But all this has been catapulted by the ancestors for a very long time.

However, there were columns from the whole affair. Perhaps the most survivable technique is considered acoustic system. I don't remember her ever being buggy. Well, in short, despite the tenacious acoustics, this Soviet elegy was then made much better than it is now, and there is no doubt about it. It is able to skip and withstand even the load more than it should be. These columns, if I'm not mistaken, are already 28 years old, and they still plow without any jambs. And they are excellently made. Now you will hardly meet acoustics, the body of which is made of wood. Although no, there is of course right now made of wood, otherwise they would simply simply produce a sound of poor quality, or rather, plastic would ring. But just like that, not only is it not a hidden tree under black plastic, as it is done now, it is also varnished. The speaker has 2 speakers. 1 main responsible for low and high frequencies, 2 pure voice. Their total power is 9 watts. But the bottom one itself can take on about 16 watts of power. At least that's what it says in the instructions.

Video review

Checking the column from "Elegy 102"

Melody 104-stereo radiogram block